The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1998
Filed:
Sep. 29, 1995
Applicant:
Inventors:
Wei-Liang Chen, Hsinchu, TW;
Kai-Rhen Shiao, Miao-Li Shiann, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 61 ; 528 64 ; 528 67 ;
Abstract
Polyurethane elastic products prepared by a two-stage process are disclosed. In the first stage, polyols are reacted with diisocyanates to form prepolymers. The prepolymers are then reacted with diamine chain extenders which contain amide linkages, to form polyurethane elastic products.